#!/bin/sh

#
#   update-blocklist-2.sh
#   Download a list of blocked domains and pass to dnsmasq
#

target='blank'  # IP to resolve blocked domains to
configfile=/etc/dnsmasq.conf


# List server specification
listurl="http://pgl.yoyo.org/adservers/serverlist.php?hostformat=nohtml&showintro=0"
extrasfile='/etc/blacklist' # Add additional entries here
reloadcmd='/etc/init.d/dnsmasq restart'  
tmpfile="/tmp/.adlist.$$"
tmpconf="/tmp/.dnsmasq.conf.$$"
fetchcmd="/usr/bin/curl "$listurl" -o "$tmpfile""

$fetchcmd

# Add additional entries 
[ -f "$extrasfile" ]  && cat $extrasfile >> $tmpfile

# Check temp file
if  [ ! -s $tmpfile ]; then
  echo "temp file '$tmpfile' either doesn't exist or is empty; quitting"
  exit
fi

# save old config (excluding address entries)
if [ -f "$configfile" ]; then
  cat $configfile | grep -v "address=" > $tmpconf
fi

while read line; do
    echo "address=/${line}/${target}" >> $tmpconf
done < $tmpfile 

mv $tmpconf $configfile
$reloadcmd
rm $tmpfile
exit